X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftcon%2Ftcon.h;fp=ccan%2Ftcon%2Ftcon.h;h=df3aac88b785a4acc241e125a9c377766a55272d;hb=5c6a0ad7a9260c4cb02c707a0d813d17b23d9289;hp=e0f84b383976c4d106e6d9fe3ee9043c449d1ed8;hpb=3942778bb3f61cb580dd088c8449ca6dfdf6b7bc;p=ccan

diff --git a/ccan/tcon/tcon.h b/ccan/tcon/tcon.h
index e0f84b38..df3aac88 100644
--- a/ccan/tcon/tcon.h
+++ b/ccan/tcon/tcon.h
@@ -147,8 +147,7 @@
  * It evaluates to @x so you can chain it.
  */
 #define tcon_check_ptr(x, canary, expr)				\
-	(sizeof(&(x)->_tcon[0].canary == (expr)) ? (x) : (x))
-
+	(sizeof((expr) ? (expr) : &(x)->_tcon[0].canary) ? (x) : (x))
 
 /**
  * tcon_type - the type within a container (or void *)